In Figure 6 the key to the curves had RCP2.6 and RCP8.5 the wrong way round (RCP2.6 should have been represented by the green dotted curve), and the mean values at the right-hand side of the illustration should have read, left to right, RCP2.6, RCP4.5, RCP6.0, and RCP8.5. The same errors occurred in Figures 10 and 11. Additionally, in Figure 11 the curves in the graph for RCP2.6 and RCP8.5 were transposed, as well as the labels in the key.

The online article has now been republished with all these errors corrected.